Product Decomposition
Design Organization: Example for The Mechanical Design Process
Date: Aug 14 2007
Product Decomposed:: Irwin Quick Grip – pre 2007
Description This is the Quick-Grip Product that has been on the market for many years
How it works: Squeeze the pistol grip repeatedly to move the jaws closer together and
increase the clamping force. Squeeze the release trigger to release the clamping force. The
foot (the part on the left in the picture that holds the face that is clamped against) is reversible
so the clamping force can be made to push apart rather than squeeze together.
Parts:
Part #
Part Name
# Req’d
Material
Mfg Process
Image
1
Main body
1
PPO or PVC
Injection
molded
2
Trigger
1
PVC
Injection
molded
3
Bar
1
Steel
Cold rolled
4
Face plate, left
1
polyethylene
Injection
molded
5
Face Plate, right
(burned as part
of ID process)
1
polyethylene
Injection
molded
6
Tail stock
1
PVC
Injection
molded
7
Lock
1
Injection
molded
8
Pad
2
Injection
molded
9
Roll pin
1
Steel
Rolled
Sheet
10
Knurled pin
1
Steel
Cold rolled
11
Release trigger
spring
2
Steel
Wound wire
12
Release trigger
1
Steel
Stamped
sheet
13
Power spring
1
Steel
Wound wire
14
Jam plates
2
Steel
Stamped
Sheet
15
Label
1
PVF
Cut sheet
16
Split pins
2
Steel
Rolled sheet
Disassembly:
Step #
1
Procedure
Take off Left Face Plate
Part #s
removed
4
Image
2
Take off right Face Plate and label
3
Remove Tail Stock assembly
6,7,8,9,10
4
Remove one of the split pins
16
5
Remove Main Body assembly
6
Press out Roll Pin from Tail Stock
assembly
Press out Knurled Pin from Tail
Stock assembly
Pry off Lock from Tail Stock
assembly
Pry off Pad from Tail Stock
assembly
Remove Release Trigger from Main
Body Assembly
Remove Trigger Springs from Main
Body Assembly
7
8
9
10
11
5, 15
1,2,8,11,12,13
,14
9
10
7
8
12
11
12
13
14
Remove Jam Plates and Power
Spring from Main Body Assembly
Remove Trigger from Main Body
Assembly
Pry off Pad from Main Body
assembly
13,14
2
8
Links and drawing files:
Team member:
Team member:
Team member:
Team member:
The Mechanical Design Process
Copyright 2008, McGraw Hill
Prepared by:David Ullman
Checked by:
Approved by:
Designed by Professor David G. Ullman
Form # 1.0